2 * Printing interface for PuTTY.
8 struct printer_enum_tag {
17 struct printer_job_tag {
21 static int printer_add_enum(int param, DWORD level, char **buffer,
22 int offset, int *nprinters_ptr)
24 DWORD needed = 0, nprinters = 0;
26 *buffer = sresize(*buffer, offset+512, char);
29 * Exploratory call to EnumPrinters to determine how much space
30 * we'll need for the output. Discard the return value since it
31 * will almost certainly be a failure due to lack of space.
33 EnumPrinters(param, NULL, level, (*buffer)+offset, 512,
39 *buffer = sresize(*buffer, offset+needed, char);
41 if (EnumPrinters(param, NULL, level, (*buffer)+offset,
42 needed, &needed, &nprinters) == 0)
45 *nprinters_ptr += nprinters;
50 printer_enum *printer_start_enum(int *nprinters_ptr)
52 printer_enum *ret = snew(printer_enum);
55 *nprinters_ptr = 0; /* default return value */
56 buffer = snewn(512, char);
59 * Determine what enumeration level to use.
60 * When enumerating printers, we need to use PRINTER_INFO_4 on
61 * NT-class systems to avoid Windows looking too hard for them and
62 * slowing things down; and we need to avoid PRINTER_INFO_5 as
63 * we've seen network printers not show up.
64 * On 9x-class systems, PRINTER_INFO_4 isn't available and
65 * PRINTER_INFO_5 is recommended.
68 if (osVersion.dwPlatformId != VER_PLATFORM_WIN32_NT) {
74 if (!printer_add_enum(PRINTER_ENUM_LOCAL | PRINTER_ENUM_CONNECTIONS,
75 ret->enum_level, &buffer, 0, nprinters_ptr))
78 switch (ret->enum_level) {
80 ret->info.i4 = (LPPRINTER_INFO_4)buffer;
83 ret->info.i5 = (LPPRINTER_INFO_5)buffer;
86 ret->nprinters = *nprinters_ptr;
97 char *printer_get_name(printer_enum *pe, int i)
101 if (i < 0 || i >= pe->nprinters)
103 switch (pe->enum_level) {
105 return pe->info.i4[i].pPrinterName;
107 return pe->info.i5[i].pPrinterName;
113 void printer_finish_enum(printer_enum *pe)
117 switch (pe->enum_level) {
128 printer_job *printer_start_job(char *printer)
130 printer_job *ret = snew(printer_job);
132 int jobstarted = 0, pagestarted = 0;
134 ret->hprinter = NULL;
135 if (!OpenPrinter(printer, &ret->hprinter, NULL))
138 docinfo.pDocName = "PuTTY remote printer output";
139 docinfo.pOutputFile = NULL;
140 docinfo.pDatatype = "RAW";
142 if (!StartDocPrinter(ret->hprinter, 1, (LPSTR)&docinfo))
146 if (!StartPagePrinter(ret->hprinter))
154 EndPagePrinter(ret->hprinter);
156 EndDocPrinter(ret->hprinter);
158 ClosePrinter(ret->hprinter);
163 void printer_job_data(printer_job *pj, void *data, int len)
170 WritePrinter(pj->hprinter, data, len, &written);
173 void printer_finish_job(printer_job *pj)
178 EndPagePrinter(pj->hprinter);
179 EndDocPrinter(pj->hprinter);
180 ClosePrinter(pj->hprinter);